how to access the public method setURL() in the master page?

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C#

ASP.NET

i have a public method in Site.Master page and i wanna acees that method from a content page called "Home.aspx"

these are my codes

Site.master.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class SiteMaster : System.Web.UI.MasterPage
{
    DBAccess obj1 = new DBAccess();

    protected void Page_Load(object sender, EventArgs e)
    {
        String name;
        if (Session["email"] != null)
        {
            
            name = obj1.setusername();

            HyperLink1.Text = "Welcome " + (String)Session["name"];
            HyperLink1.NavigateUrl = "MyReservations.aspx";
            HyperLink1.ToolTip = "View your Reservations";

            HyperLink2.Text = "Log Out";
            HyperLink2.NavigateUrl = "logout.aspx";


          
           
        }

       
    }

    public string setURL( String link)
    {
       
        return link;
    }
}

Home.aspx

<%@ Page Title="VidStream" Language="C#" MasterPageFile="~/Site.master" AutoEventWireup="true"
    CodeFile="Home.aspx.cs" Inherits="_Default" %>
<%@ MasterType VirtualPath="~/Site.master"%>

<asp:Content ID="HeaderContent" runat="server" ContentPlaceHolderID="HeadContent">
<style type="text/css">
        .style1
        {
            width: 100%;
            border: 1px solid #E4E4E4;
        }
    </style>


<asp:Content ID="nav" runat="server" ContentPlaceHolderID="navigationbar">
<ul id="navbar">
<li><a href="Home.aspx" class="active">Home</a></li>
<li><a href="Movies.aspx">Movies</a></li>
<li><a href="News.aspx">News</a></li>
<li><a href="Contact.aspx">Contact</a></li>
</ul>



<asp:Content ID="Heading" runat="server" ContentPlaceHolderID="Heading">
<h1>Coming Soon</h1>



 
<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent">
    <form id="tableContainer"  runat="server">
        <asp:Table ID="CommingMovies" runat="server" class="style1" CellSpacing="20">

            
 
    
    
    </form>

Home.aspx.cs

using System;
using System.Collections.Generic;
using System.Collections;
using System.Configuration;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.SessionState;
using System.Collections;
using System.Web.UI.HtmlControls;
using System.Data;
using System.Web.Security;
using System.Security.Policy;

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        CreateDynamicTable();

    }

    private void CreateDynamicTable()
    {
        MoviesGenDataContext con = new MoviesGenDataContext();

        var nowmov = from m in con.Item_Masters
                     where m.Item_In_Stock == true
                     select m;

        //var movi = from m in con.Moviedbs select m;
        ArrayList list = new ArrayList();
        foreach (var x in nowmov)
        {
            TableRow row = new TableRow();
            TableCell cell1 = new TableCell();
            TableCell cell2 = new TableCell();
            TableCell cell3 = new TableCell();
   

            Label desc = new Label();
            LiteralControl h1start = new LiteralControl("<h1>");
            LiteralControl h1end = new LiteralControl("</h1>"); 
            desc.Text = x.Item_Desc;
            
           

            

            HyperLink movlk = new HyperLink();
            LiteralControl nln = new LiteralControl("<br />");
            LiteralControl nln2 = new LiteralControl(" ");
            HyperLink play = new HyperLink();
            HyperLink book = new HyperLink();

            //ImageButton playbtton = new ImageButton();
            play.ImageUrl = "Images/playtrailer.gif";
            play.NavigateUrl = "Global.asax?url="+x.Trailer_URL;
            
i wanna access the method here

           // play.NavigateUrl = Site. + x.Trailer_URL;
            
           

            //ImageButton bookbtton = new ImageButton();
            book.ImageUrl = "Images/bookDVD.gif";

            movlk.ImageUrl = "Posters/" + x.Name.Trim() + ".jpg";

            cell1.Controls.Add(movlk);
           

            cell1.Width = Unit.Pixel(214);
            cell2.Width = Unit.Pixel(200);
            cell2.Controls.Add(h1start);
            cell2.Controls.Add(desc);
            cell2.Controls.Add(h1end);
            cell2.Controls.Add(nln);

            //play.Text = "Play This Trailer";
            //play.NavigateUrl = "MPlayer.aspx?Vn=Posters/"+ x.Name + ".flv";

            //book.Text = "Book This Movie";
            //book.NavigateUrl = "Book.aspx?Vn=" + x.Name.Trim();

            cell3.Controls.Add(play);
            cell3.Controls.Add(nln);
            cell3.Controls.Add(book);

            row.Cells.Add(cell1);
            row.Cells.Add(cell2);
            row.Cells.Add(cell3);
          

        
            CommingMovies.Rows.Add(row);
       


            //GridView1.AutoGenerateColumns = true;

            //GridView1.DataSource = list;
            //GridView1.DataBind();
        }

    }
}

i tried to access the method by creating an object of the master class and using this
Master.setURL();
but it didnt work. can any one analyze the code and tell me how to access this method?? i think i'm missing a directive. can anyone tell me what it is??